What are the two variables it makes sense to correlate in this data set?

Correlations

 

  1. The following correlation co-efficients correspond with the graphs below. Just match them. (5)

 

  1. a) r(24) = 0.999
  2. b) r(24) = -0.991
  3. c) r(24) = 0.359
  4. d) r(24) = -0.540
  5. e) r(24) = 0.0289

 

 

1         60

40

20

0

 

 

2        60

40

20

0

0              20             40            60

 

0           20          40          60          80

 

 

3         100

50

 

 

0

 

 

4       200

100

0           20          40          60          80

 

 

 

0

 

60

40

5        20

0

0               20              40              60

 

0           20          40          60          80

 

  1. Look at the following relationships. Which criteria of causation does it violate? (1)

 

 

  1. Temporal precedence, covaration and non-spuriousness
  2. Covaration
  3. Temporal precedence and covariation
  4. Non-spuriousness
  5. Temporal precedence and non-spuriousness.

 

 

 

Working with data

Correlation

 

This exercise refers to the dataset

 

  1. What are the two variables it makes sense to correlate in this data set? (1)
  2. Generate a sensible hypothesis for the study. (1)
  3. How many participants took part in the study? (1)
  4. What were the degrees of freedom? (1)
  5. Run a bivariate correlation and paste the output here (2)
  6. What was the correlation co-efficient? (1)
  7. What was the significance level of the correlation? (1)
  8. Write out the results in APA style. (2)
  9. the hypothesis
  10. the descriptive statistics
  • the inferential statistics
  1. whether the data support your hypothesis

 

 

Controlling for Other Variables

 

This exercise refers to the dataset

 

  1. Think of three confounding variable in the study outlined above. (3)
  2. The researchers decided to see if global self esteem was a confounding variable. Write out an appropriate hypothesis for this. (1)
  3. Run the partial correlation. What does this tell you about the relationship between body image and social media when the influence of global self esteem is taken into account. (2)
  4. Report the results in full APA style (1)
  5. How would you explain the results? (3)